DE1797380C3 - Process for preparing a silver halide photographic emulsion and apparatus for practicing this process - Google Patents

Description

The speed of movement through the Drein. ,1

4 <. bewcEtcn l.Visung-increasing means, whereby the \. .,. ■ .-

ilunu'der d? e sifber nitrate solution supplying Lei; ...G

or "lines to which the Bewcgmigsgeschwindiy'.eit is assigned to increasing means. thereby gek, -.! iizcichnct. that in addition / u of the silver nitrate.: ig

The subject of the patent 1 597 643 is a method 15 feeding a further line, the feeding for the production of a photographic silver halide a concentrated potassium iodide solution genide emulsion. which is characterized by. Line is provided, the mouth of which the that immediately after the introduction of vigorous wedge-increasing agents, zigc-dryers or swollen gelatin in which is arranged.

desired reaction temperature brought halo 5> The mouth of the supplying the potassium iodide penid solution lets the silver nitrate solution flow in. Line can be parallel to that of the Silbernitrai a relatively small part of the line leading to it be arranged, heweuien halide solution is moved more strongly and the invention is not based on the following

the silver nitrate solution is brought closer to this more moving part as an example to be understood as a limitation. Furthermore, the patent I 5 ') 7 643 55 is explained
a device to carry out this procedure,

consisting of a boiler and a “1

..... ir,,. , , Example

cinematic. moving a serving existing in the boiler solution rotary part, which is characterized by a 6u in the workspace of turning ^r For an emulsion with further increased portion arranged that Bewegungsgcsehwindigkcit sensitivity without increasing the grain moving through the rotary part solution enhancing

Means, where the mouth tier is the silver nitrate solution part Λ:

supplying line or lines to which the loading 25 ml H ₂ O.

means of increasing the speed of movement? ml of a 10 weight percent solution of

is arranged. Phenol in ethanol,

The patent 1 5 ^l > 7 643 made an emulsion 30 g gelatin,

Swell for 30 minutes at 20 C with improved utilization of the egg.

Part B: τ>; ι ρ

, “Ι Η, Ο. 400OmIHA

50 ml of a 10 weight percent solution of ⁵⁰ OS AgNO ₁₁ ,

Phenol in ethanol, heat to 60 "C.

40OgKBr, 5 _{parts of D;}

heat to 65 ° C. 500 g dry gelatin.

After the temperatures of components B, B and C had been reached, part B in the area of the rotating part became in

• ^ei '^ i · »ο corresponding movement offset, part A to part B

17 g of KJ, added and immediately afterwards part B ₁ and

50 ml of H., 0 part C allowed to flow in, namely part B ₁ within

60 seconds and part C within 6 minutes. Then heat to 63 C. _Wurt le introduces part D.

Claims (2)

ι 2 silver salts *, so a saving in silver nitrate or • ■ u, 1 effective opacity increase with unchanged patent claims: S ^ ÄlSi ^ SS. ^ ei "e 0P1 ^ Sense- 1. Process for the production of a photograph without ^ ™ vewoBerun _B erhicju see silver halide emulsion, wherein the im- 5 The present ErfiiiUung I now WGJ Ue Au ^ _t hu indirectly after the introduction of dry basis, more e.ne Ernpl ^ ¹ ^ ^1; to ^ £ "" B or swollen gelatin in the to achieve the desired halide solution without increasing the size of the grain by means of the halide solution brought to the reaction temperature. A relatively small part of the iodide solution moved in a certain way means that the halide solution is moved more intensely and this subject matter of the invention is ,,, - is led, according to patent 1 507 643, thereby genide emulsion. be. The one unm.ttebar mc dem characterized that from the introduction of dry or swollen C.ea ,,, "desired reaction temperature" brought Ha- .5 into the temperature gelocenidlösung to the desired reaction *, the potassium iodide was removed and brought Halide solution allows the S.Ibern.tratlosung <m> as a concentrated aqueous solution with the name, whereby a relatively small TeM silver nitrate solution to the relatively coagulating of the moving halide solution sUrKr becomes part of the moving halide solution and this more moving part is added oil ^ ^ l ■■ is performed, which is more 'moved. ~ "ao mtratlösu.U! is supplied naen I aienl 1 1) 1 · o. 2. Vorriclmmu zur Ausübuni: the method characterized in that from the Jii üil .., - after Claim !, consisting of a boiler, desired reaction temperature, brought halo.c: · ,. and one in this insertable, the solution of agitation, the potassium iodide left and o.itui. ', a concentrated aqueous solution, which is used in the kettle, with the mixture:,. ■> ■ Turned part with a solution in the working range of the turning = 3 the relatively low I ei of an η part arranged, the motion-visually-moving halide solution is supplied, the m; ü r speed of the l.ösimn being moved by the rotating part. increasing means, whereby the mouth of the what the / awakening device / ur Ausur · j If the line supplying silver nitrate solution is concerned with this method, the following must only be ensured: 1 tu η! -, to which the Bewemingsgeschwindiiikeit 30 another line for the supply of quay: - is assigned to increasing means - iodide of the device of the patent \ S) I Mi z; · - draws that, in addition to that, the silver medal! Wirti solution supplying a further line, the subject of the invention is therefore also; v A concentrated potassium iodide apparatus for carrying out the erlindungsgeiv ·. ·., Serving supplying line is provided, the mouth of which, consisting, to which the method Beweiiuimsi'cschwindiszkei eir.führbaren 35 from a boiler and iv. · 'Increasing in these. the moving of an "existing solution serving" rotating part with e: ..- ;; i arranged in the working area of the turned part. _: e